Table 1 SOT characteristics in several typical heterostructures of 2D vdW ferromagnets

From: Room temperature energy-efficient spin-orbit torque switching in two-dimensional van der Waals Fe3GeTe2 induced by topological insulators

 

Maximum temperature of SOT switching

Switching write current density

SOT efficiency

Pt/Fe3GeTe2 (ref. 45.)

180 K

~2.5 × 107 A/cm2

0.14

Pt/Fe3GeTe2 (ref. 46)

120 K

~7.4 × 106 A/cm2

0.12

WTe2/Fe3GeTe2 (ref. 60)

135 K

~6.5 × 106 A/cm2

/

WTe2/Fe3GeTe2 (ref. 63)

190 K

~4.2 × 106 A/cm2

/

WTe2/Fe3GeTe2 (ref. 64)

160 K

~3.5 × 106 A/cm2

4.6

Bi2Te3/Fe3GeTe2 (this work)

300 K

~4 × 106 A/cm2 (200 K);

~2.2 × 106 A/cm2 (300 K)

0.7 (300 K)

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